"While synthetics make up just a fraction of the market, they have growing appeal to younger buyers -- a headache for mine owners, who are under pressure to cut supply and lower prices, because traders, cutters and polishers are struggling to profit amid a credit squeeze and languishing jewelry sales... "Martin Roscheisen, chief executive of Diamond Foundry Inc., a San Francisco synthetic-diamond producer with a capacity of 24,000 carats, says he believes nearly all diamonds consumers purchase will be man-made in a few decades," reports the Journal. "To counter the threat, last year De Beers helped launch a trade association with other producers to market the attraction of natural diamonds."

So in other words, they can't compete with price or quality, so they hope to ascribe some sort of moral value to diamonds mined out of conflict zones by workers who make considerably less on average than a living wage?

Yeah, good luck with that.